Modular cross-flow-fan device

ABSTRACT

A modular cross-flow-fan device comprises a housing, at least two cross flow fans and a motor. The housing is an extruded aluminum piece having a first wall and a second wall, and is formed with an air inlet and an air outlet. The cross flow fans are disposed in the housing and connected to each other. The motor is disposed on the housing and is connected to at least one of the cross flow fans. By this structure, longer cross flow fans having preferred rigidity and strength can be formed.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present disclosure relates to a cross flow fan; in particular, to a modular cross flow fan.

2. Description of Related Art

Conventional cross flow fans can be installed at appropriate positions in buildings for driving flow of air, such that hot air current produced by heating devices or cool air current produced by cooling devices can be output for heating or cooling the ambience. The lengths of the blades in conventional cross flow fans are limited by insufficient strength of the same. Therefore, long cross flow fans are rare in the market. If a long cross flow fan is needed, typically two or three cross flow fans are connected in series. FIG. 1 discloses two cross flow fans 100 locked together at their respective ends proximal to each other by a plurality of screws 200, connecting in series to attain a greater length. Additionally, FIG. 2 discloses two cross flow fans 100 disposed on a base plate 300, connected in series via the base plate 300 to attain a greater length. However, the serial connections of the abovementioned cross flow fans are costly in terms of assembly time and labor, and have poor strength and rigidity.

Hence, the present inventor believes the above mentioned disadvantages can be overcome, and through devoted research combined with application of theory, finally proposes the present disclosure which has a reasonable design and effectively improves upon the above mentioned disadvantages.

SUMMARY OF THE INVENTION

The object of the present disclosure is to provide a modular cross flow fan for forming a longer cross-flow-fan device not requiring a serial connection device and having preferred rigidity and strength.

In order to achieve the aforementioned objects, the present disclosure provides a modular cross-flow-fan device including: a housing, which is an extruded aluminum piece having a first wall, a second wall, and a partition board partitioning the interior thereof into at least two compartments, and is formed with an air inlet and an air outlet; at least two cross flow fans disposed in respective compartments of the housing, wherein the two cross flow fans are connected therebetween; and a motor disposed in the housing and connected to at least one of the cross flow fans.

In order to achieve the aforementioned objects, the present disclosure further provides a modular cross-flow-fan device including: a housing, which is an extruded aluminum piece having a first wall and a second wall, and is formed with an air inlet and an air outlet; at least two cross flow fans disposed in the housing, wherein the two cross flow fans are connected therebetween; and a motor disposed in the housing and connected to at least one of the cross flow fans.

The present disclosure has the following advantages. The modular design of the cross flow fans of the present disclosure forms longer cross-flow-fan devices to meet demands for the same without wasting time and labor to serially connect cross flow fans. The cross flow fans of the present disclosure share a common housing made by extruded aluminum which is rigid, strong, light weight and easy to transport. The modular design of the present disclosure facilitates adjustment of length and adjustments of motor and blade quantities. The production is simplified and the cost is lowered.

In order to further the understanding regarding the present disclosure, the following embodiments are provided along with illustrations to facilitate the disclosure of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a perspective diagram of conventional cross flow fans connected in series;

FIG. 2 shows a perspective diagram of other conventional cross flow fans connected in series;

FIG. 3 shows a front view of a cross-flow-fan device according to a first embodiment of the present disclosure;

FIG. 4 shows a side view of a cross-flow-fan device according to a first embodiment of the present disclosure;

FIG. 5 shows a perspective diagram of a cross-flow-fan device according to a first embodiment of the present disclosure;

FIG. 6 shows a perspective diagram of a cross-flow-fan device according to a first embodiment of the present disclosure from another perspective;

FIG. 7 shows a schematic diagram of a partial structure of a cross-flow-fan device according to a first embodiment of the present disclosure;

FIG. 8 shows a front view of a cross-flow-fan device according to a second embodiment of the present disclosure;

FIG. 9 shows a front view of a cross-flow-fan device according to a third embodiment of the present disclosure; and

FIG. 10 shows a front view of a cross-flow-fan device according to a fourth embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The aforementioned illustrations and following detailed descriptions are exemplary for the purpose of further explaining the scope of the present disclosure. Other objectives and advantages related to the present disclosure will be illustrated in the subsequent descriptions and appended drawings.

First Embodiment

Referring to FIG. 3 to FIG. 6, the present disclosure provides a modular cross-flow-fan device including a housing 1, at least two cross flow fans 2 and a motor 3. The housing 1 is strip-shaped and is an extruded aluminum piece. The length of the housing 1 is variable, not limited, and adaptable to the quantity of accommodated cross flow fans 2. For example, if two, three, four or five cross flow fans 2 are to be accommodated, then the housing 1 is formed with different lengths accordingly.

The housing 1 has a first wall 11 and a second wall 12. The first wall 11 and the second wall 12 are connected and are preferably perpendicular to each other such that a cross section of the housing 1 is substantially L-shaped, namely bent. However, the included angle between the first wall 11 and the second wall 12 can be altered to be 80 degrees, 90 degrees, 100 degrees, etc. A guiding portion 13 can be formed between the first wall 11 and the second wall 12. The guiding portion 13 can be curved or planar, for guiding air flow. The housing 1 is formed with an air inlet 14 and an air outlet 15, possibly on two adjacent sides of the housing 1. A separation portion 16 may be disposed between the air inlet 14 and the air outlet 15.

A first base 17 and a second base 18 can be attached respectively to the two ends of the casing 1 by screws. The two bases 17, 18 can be installed at appropriate positions on buildings. However, the particular position of fixture of the two bases 17, 18 to the housing 1 and the building is not limited thereto.

A partition board 19 can be disposed on the housing 1, possibly by screws, rivets, etc. Namely, the partition board 19 can be disposed on the housing 1 and the separation portion 16, the fixture method of which is not limited. The quantity of partition boards 19 can be altered according to the quantity of cross flow fans 2. The partition boards 19 can partition the interior of the housing 1 into a plurality of accommodating spaces A to accommodate and support the respective cross flow fans 2.

The cross flow fan 2 can be made of plastic and aluminum, but is not limited thereto. The cross flow fan 2 has a plurality of curved blades 21, disposed at intervals forming a cylindrical shape. The cross flow fans 2 can amount to two, three, four, five, etc. In the present embodiment, three cross flow fans 2 are disposed in the housing 1. Namely, the cross flow fans 2 are disposed respectively in the accommodating spaces A. The cross flow fans 2 are connected therebetween. Namely, two adjacent cross flow flans 2 are connected by an axis 22 (as shown in FIG. 7). The axis 22 can work in conjunction with a bearing unit (not shown in the figures) and an elastic sleeve 23 to be rotatably accommodated in the partition board 19. Namely, the axis 22 and the bearing unit (not shown in the figures) can be rotatably accommodated in the elastic sleeve 23, which in turn is fixed to the partition board 19, such that the cross flow fans 2 can freely rotate in the housing 1. Connection between cross flow fans 2 and rotatable accommodation in the housing 1 are conventional methods, and the present disclosure is not limited thereto.

The motor 3 can be disposed on the housing 1. The motor 3 is connected to at least one of the cross flow fans 2. The present embodiment employs only one motor 3, disposed on an external side of the housing 1. The motor 3 can be fixed to the housing 1 by screws or other methods. The motor 3 is connected to the axis 22 of at least one of the cross flow fans 2, such that the cross flow fans 2 can be rotatably driven by the motor 3. The motor 3 can be a brushless direct current motor or a stepper motor having a small volume and light weight. However, the motor 3 is not limited by types. The motor 3 is electrically connected to the appropriate control circuit (not shown in the figures).

Second Embodiment

Referring to FIG. 8, the modular cross-flow-fan device of the present embodiment includes a housing 1, two cross flow fans 2 and a motor 3. A cover 4 shields the air inlet 14 of the housing 1. The cover 4 is disposed on the housing 1 by assembly. The cover 4 has a plurality of through holes 41. The structure of the cover 4 is not limited, and can be a grille, a mesh, etc. The cover 4 shielding the air inlet 14 prevents foreign objects from entering, thereby increasing safety during operation.

Third Embodiment

Referring to FIG. 9, only one motor 3 is employed in the present embodiment. The motor 3 is disposed inside the housing 1 and is fixed to the housing 1 by screws. The motor 3 is connected to the axes 22 of two of the cross flow fans 2 such that the cross flow fans 2 can be rotatably driven by the motor 3.

Fourth Embodiment

The present disclosure can employ multiple motors. Referring to FIG. 10, the present embodiment employs two motors 3. When the quantity of cross flow fans 2 is large, the motors 3 can respectively drive the cross flow fans 2.

The cross-flow-fan device of the present disclosure uses a modular design for forming longer cross-flow-fan devices, wasting less labor and time to serially connect the cross flow fans. Also, the cross flow fans 2 of the present disclosure share a single housing 1 which is an extruded aluminum piece which has preferred rigidity, strength, is light weight and easy to transport. The modular design of the present disclosure facilitates adjustment of length and adjustments of motor and blade quantities. The production is simplified and the cost is lowered.

The descriptions illustrated supra set forth simply the preferred embodiments of the present disclosure; however, the characteristics of the present disclosure are by no means restricted thereto. All changes, alternations, or modifications conveniently considered by those skilled in the art are deemed to be encompassed within the scope of the present disclosure delineated by the following claims. 

What is claimed is:
 1. A modular cross-flow-fan device, comprising: a housing, which is an extruded aluminum piece, having a first wall, a second wall, and a partition board therein partitioning the interior of the housing into at least two accommodating spaces, and formed with an air inlet and an air outlet; at least two cross flow fans, disposed respectively in the accommodating spaces and connected to each other; a motor, disposed on the housing and connected to at least one of the cross flow fans.
 2. The modular cross-flow-fan device according to claim 1, wherein a guiding portion is formed between the first wall and the second wall.
 3. The modular cross-flow-fan device according to claim 2, wherein the guiding portion is curved or a slanted plane.
 4. The modular cross-flow-fan device according to claim 1, wherein a cross section of the housing has a bent shape.
 5. The modular cross-flow-fan device according to claim 1, wherein the first wall and the second wall are perpendicular to each other.
 6. The modular cross-flow-fan device according to claim 1, wherein the air inlet and the air outlet are formed at two adjacent sides of the housing, and a separation portion is disposed between the air inlet and the air outlet.
 7. The modular cross-flow-fan device according to claim 6, wherein the partition board is disposed on the housing and the separation portion.
 8. The modular cross-flow-fan device according to claim 1, wherein a first base and a second base are respectively assembled at the two ends of the housing.
 9. The modular cross-flow-fan device according to claim 1, wherein each of two adjacent cross-flow-fan devices are connected therebetween via an axis, and the axis is configured with a bearing unit and an elastic sleeve to be rotatably accommodated in one of the partition boards.
 10. A modular cross-flow-fan device, comprising: a casing, which is an extruded aluminum piece, having a first wall and a second wall, and is formed with an air inlet and an air outlet; at least two cross flow fans, disposed in the housing and connected to each other; a motor, disposed on the housing and connected to at least one of the cross flow fans. 